I'm putting in a bulkhead in a gutted power boat. I'm looking for info
on how to trace the curved surface of the hull vertically with the
chines etc so I get a close fit with the bulkhead material. If anyone
know any tips tricks or tutorials please let me know. Thanks

Uncle Bob wrote:
I'm putting in a bulkhead in a gutted power boat. I'm looking for info
on how to trace the curved surface of the hull vertically with the
chines etc so I get a close fit with the bulkhead material. If anyone
know any tips tricks or tutorials please let me know. Thanks

I've done this type of work in the past. My method has been to use
something like 1/4" plywood to make a template. Basically, I pre-fit the
template to the curve / shape by eye as much as possible, then use a
drafting compass to trace the shape onto the template to fine tune. It
takes a bit to get the fit exact, but it works for me.

On Jan 7, 12:43*pm, sojo wrote:
Uncle Bob wrote:
I'm putting in a bulkhead in a gutted power boat. I'm looking for info
on how to trace the curved surface of the hull vertically with the
chines etc so I get a close fit with the bulkhead material. If anyone
know any tips tricks or tutorials please let me know. Thanks

I've done this type of work in the past. My method has been to use
something like 1/4" plywood to make a template. Basically, I pre-fit the
template to the curve / shape by eye as much as possible, then use a
drafting compass to trace the shape onto the template to fine tune. It
takes a bit to get the fit exact, but it works for me.

Thank you.

"Uncle Bob" wrote in message
...
I'm putting in a bulkhead in a gutted power boat. I'm looking for info
on how to trace the curved surface of the hull vertically with the
chines etc so I get a close fit with the bulkhead material. If anyone
know any tips tricks or tutorials please let me know. Thanks

There is a technique that people who lay tiles use that transfers patterns
well. They square up a tile on the last whole tile and bump another tile
against the obstruction.

Anyway if you don't have a tile guy handy who can show you the technicque,
it would go similar to this.

Get a yardstick with a level or plumbob with fixed length string. Put a
sheet of plywood or what you want to make the pattern out of ABOVE the hull.
Something like a 4'x8' sheet of plywood set on the rails/gunwales.
i.e.

*********************
* O *
* O *
* O *
* x *
*********x**********
\ x /
\ x /
\ x /
\/
Where the x is a yard stick with a level on it, the O are the marks you make
on the plywood as you move the stick to the right while keeping it vertical.
Repeat in the other direction and cut out.

Sorry if my illustrations are too bad to figure out.

Rick

The answer is to use a Joggle Stick. I've used this method of working for
bulkheads and seat cushion plans. I've just searched for a good site
showing the method of use on Google and selected this one to save me writing
a long description. If your points are many and your joggle stick 'teeth'
too similar then it helps to add a number on each tooth and write them on
the traced patterns...Success to you. Good Luck. regards, Winch_handle
You may need to copy and paste this into your browser.
http://www.builderbill-diy-help.com/joggle-stick.html




"Uncle Bob" wrote in message
...
I'm putting in a bulkhead in a gutted power boat. I'm looking for info
on how to trace the curved surface of the hull vertically with the
chines etc so I get a close fit with the bulkhead material. If anyone
know any tips tricks or tutorials please let me know. Thanks

On Apr 11, 1:34*pm, "Aleck Poole" wrote:
The answer is to use a Joggle Stick. * I've used this method of working for
bulkheads and seat cushion plans. * I've just searched for a good site
showing the method of use on Google and selected this one to save me writing
a long description. * If your points are many and your joggle stick 'teeth'
too similar then it helps to add a number on each tooth and write them on
the traced patterns...Success to you. *Good Luck. * *regards, *Winch_handle
You may need to copy and paste this into your browser.http://www.builderbill-diy-help.com/joggle-stick.html

"Uncle Bob" wrote in message

...

I'm putting in a bulkhead in a gutted power boat. I'm looking for info
on how to trace the curved surface of the hull vertically with the
chines etc so I get a close fit with the bulkhead material. If anyone
know any tips tricks or tutorials please let me know. Thanks

That's perfect. Thanks